<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>左右布局</title>
		<style>
			div.left{
				width: 30%;
				background-color: #ffff00;
				padding: 10px;
				float: left;
			}
			div.right{
				width: 60%;
				background-color: #ff007f;
				padding: 10px;
				float: right;
			}
		</style>
	</head>
	<body>
		<div>
			<div class="left">左侧区域</div>
			<div class="right">右侧区域</div>
		</div>
	</body>
</html>